Mental disorders. For example, a person tells a story about a serial killer who is not caught because he rrasstvoryaet corpses in sulfuric kisloote and girl trying to catch him. But in the end it turns out that this is just a figment of her imagination ...

A serial bankrupt business man who's utterly self-obsessed and deaf to any criticism finances his independent attempt to become the US President, succeeds, attempts to stifle normal press and tv reporting, spends all night posting messages, straight off the top of his head on the internet and is slipping further from reality by waging a personal fight with the very security services that are in place to serve him.

Mad and incredible I know but it might work as a short dystopian sic-fi yarn.

Just kidding...

Tiger+Classic / Snow Leopard / El Capitan - Previously; Mac System 7.5.5 - BeOS something, I forget now on a Beige 9600 with MacOS 8 although it took a bit of tweeking...